Request for reviews (S): 8005522: use fast-string instructions on x86 for zeroing

Christian Thalinger christian.thalinger at oracle.com
Wed Jan 2 16:56:23 PST 2013


On Jan 2, 2013, at 10:28 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:

> Thank you, Roland
> 
> I added separate mach nodes for fast stosb in .ad files to fox formats:
> 
> http://cr.openjdk.java.net/~kvn/8005522/webrev.01/

+   void rep_setbyte();

Can we name it rep_stosb?  That's closer to the actual instruction.

-- Chris

> 
> Thanks,
> Vladimir
> 
> On 1/2/13 1:39 AM, Roland Westrelin wrote:
>>> http://cr.openjdk.java.net/~kvn/8005522/webrev/
>>> 
>>> 8005522: use fast-string instructions on x86 for zeroing
>> 
>> 
>> In x86_32.ad/x86_64.ad the rep_stos() format is no longer in sync with the code that is emitted.
>> Otherwise, it looks good.
>> 
>> Roland.
>> 



More information about the hotspot-compiler-dev mailing list